<template>
 <el-container class="home-container">
     <!-- 头部 -->
     <el-header>
         <div>
            <img src="../assets/logo.png" alt="">
            <span>电商后台管理系统</span>
         </div>
        <el-button type="info" @click="logout">退出</el-button>
    </el-header>
  <el-container>
      <!-- 侧边栏 -->
     <el-aside :width="isCollapse ? '64px ': '200px'">
       <div class="toggle-button" @click="toggleCollapse">|||</div>
          <el-menu background-color="#333744" text-color="#fff" active-text-color="#409EFF"
           unique-opened :collapse="isCollapse" :collapse-transition="false" router :default-active="activePath">
       <!-- 一级菜单 -->
      <el-submenu :index="item.id + ''" v-for="item in menulist" :key="item.id">
       <!-- 一级菜单模板区域 -->
        <template slot="title">
        <!-- 图标 -->
          <i :class="iconsObj[item.id]"></i>
          <!-- 文本 -->
          <span>{{item.authName}}</span>
        </template>

           <!-- 二级菜单 -->
          <el-menu-item :index="'/' + subItem.path " v-for="subItem in item.children" :key="subItem.id"
           @click="saveNavState('/' + subItem.path)">
            <template slot="title">
           <!-- 图标 -->
          <i class="el-icon-menu"></i>
          <!-- 文本 -->
          <span>{{subItem.authName}}</span>
        </template>
          </el-menu-item>
      </el-submenu>
    </el-menu>
     </el-aside>
     <!-- 主体 -->
     <el-main>
       <router-view></router-view>
     </el-main>
  </el-container>
 </el-container>
</template>
<script>
export default {
  data() {
    return {
      menulist: [],
      iconsObj: {
        125: 'iconfont icon-user',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao'
      },
      isCollapse: false,
      activePath: ''
    }
  },
  created() {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    logout () {
      // 清空token
      window.sessionStorage.clear()
      // 跳转到登录页
      this.$router.push('/login')
    },
    async getMenuList() {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.menulist = res.data
      console.log(res)
    },
    toggleCollapse() {
      this.isCollapse = !this.isCollapse
    },
    saveNavState(activePath) {
      window.sessionStorage.setItem('activePath', activePath)
      this.activePath = activePath
    }
  }
}
</script>
<style lang="less" scoped>
.home-container{
  height:100%
}
.el-header{
    background-color: #373d41;
    display: flex;
    justify-content: space-between;
    padding-left:0;
    align-items: center;
    color: #fff;
    font-size:20px ;
    >div{
        display: flex;
        align-items: center;
    }
    span{
        margin-left: 15px;
    }
    img{
        width: 50px;
        height: 50px;
    }

}
.el-aside{
    background-color: #333744;
    border-right: none;
}
.el-main{
    background-color: #eaedf1;
}
.iconfont{
  margin-right: 10px;
}
.toggle-button{
  background-color: #4A5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>
